Malicious PDF — malware analysis report

Static analysis result for SHA-256 0d3cac1cc4b68c98…

MALICIOUS

PDF

47.3 KB Created: 2021-05-13 20:43:50 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-14
MD5: 3a033bff69aa4c961f85a959e46fb458 SHA-1: 5d669347444ee25cd6980e993c236b69c281fe49 SHA-256: 0d3cac1cc4b68c98960f797c274b7ac605d573cc85be23f8e82a15506ba1289c
200 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.8948

Heuristics 5

  • PDF links to a 'free generator / game hack' redirector critical PDF_GAME_HACK_REDIRECT_LURE
    PDF's clickable action targets a redirector of the form /app/<id>/<slug>-game-hack — the landing-page shape of a large SEO 'free spins / generator / game hack' lure family that funnels victims through rotating disposable hosts to a malware/scam payload. The multi-link variants also trip ML/link-farm rules; this catches the single-link variants that otherwise score clean. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Brand-impersonation credential phishing lure high SE_BRAND_CREDENTIAL_PHISH
    Document impersonates a well-known consumer brand and uses account-security / verification language ('unusual activity', 'account on hold', 'verify your account') to steer the reader to a credential-harvesting link. Corroborated by: call-to-action link host does not match the impersonated brand: https://netcdn.xyz/app/431946152/how-to-make-free-robux-game-hack.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://netcdn.xyz/app/431946152/how-to-make-free-robux-game-hack In PDF document text
    • http://balibetonmandiri.com/new/public/ckfinder/userfiles/files/haktuts-coin-master-free-spin-link_GM406889139.pdfIn PDF document text
    • http://balibetonmandiri.com/new/public/ckfinder/userfiles/files/can-you-play-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://balibetonmandiri.com/new/public/ckfinder/userfiles/files/hacker-coin-master_GM406889139.pdfIn PDF document text
    • http://balibetonmandiri.com/new/public/ckfinder/userfiles/files/free-spin-link-for-coin-master-game_GM406889139.pdfIn PDF document text
    • http://balibetonmandiri.com/new/public/ckfinder/userfiles/files/how-do-you-get-free-robux-without-doing-anything_GM431946152.pdfIn PDF document text
    • http://balibetonmandiri.com/new/public/ckfinder/userfiles/files/free-robux-generator-for-roblox-2021_GM431946152.pdfIn PDF document text
    • http://balibetonmandiri.com/new/public/ckfinder/userfiles/files/coin-master-free-spins-and-coins-generator_GM406889139.pdfIn PDF document text
    • http://balibetonmandiri.com/new/public/ckfinder/userfiles/files/minecraft-pe-hack-client_GM479516143.pdfIn PDF document text
    • http://balibetonmandiri.com/new/public/ckfinder/userfiles/files/how-to-really-hack-coin-master_GM406889139.pdfIn PDF document text
    • http://balibetonmandiri.com/new/public/ckfinder/userfiles/files/hacks-for-roblox-jailbreak_GM431946152.pdfIn PDF document text
    • http://balibetonmandiri.com/new/public/ckfinder/userfiles/files/how-to-make-my-own-coin-master-cards-hack_GM406889139.pdfIn PDF document text
    • http://balibetonmandiri.com/new/public/ckfinder/userfiles/files/how-to-get-minecraft-for-free-on-nintendo-switch_GM479516143.pdfIn PDF document text
    • http://balibetonmandiri.com/new/public/ckfinder/userfiles/files/minecraft-app-store-free_GM479516143.pdfIn PDF document text
    • http://balibetonmandiri.com/new/public/ckfinder/userfiles/files/hack-card-collection-coin-master_GM406889139.pdfIn PDF document text
    • http://balibetonmandiri.com/new/public/ckfinder/userfiles/files/coin-master-free-cards_GM406889139.pdfIn PDF document text
    • http://balibetonmandiri.com/new/public/ckfinder/userfiles/files/minecraft-java-hacks_GM479516143.pdfIn PDF document text
    • http://balibetonmandiri.com/new/public/ckfinder/userfiles/files/how-many-levels-does-coin-master-have_GM406889139.pdfIn PDF document text
    • http://balibetonmandiri.com/new/public/ckfinder/userfiles/files/free-robux-co_GM431946152.pdfIn PDF document text
    • http://balibetonmandiri.com/new/public/ckfinder/userfiles/files/free-coins-coin-master_GM406889139.pdfIn PDF document text
    • http://balibetonmandiri.com/new/public/ckfinder/userfiles/files/free-coin-master-spins-2021_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004a6a.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4A6A 27244 bytes
SHA-256: 69d6ae84c3e0a873c9a87bffe3763266d925417156b2fc24a2e1fb7688e44dc2
font_01_sfnt_off000087f2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x87F2 5696 bytes
SHA-256: 450e3ee45915afe13702bf1d587eb8b9ad88a8d2113419ac9f2fd116a828e139
font_02_sfnt_off00009504.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9504 18772 bytes
SHA-256: bc975d0cd3d1d09474d4302e54d359df6d5266f7e81f0636855fd998b44c4aca

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